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      •   UMY Repository
      • 03. DISSERTATIONS AND THESIS
      • Students
      • Undergraduate Thesis
      • Faculty of Engineering
      • Department of Mechanical Engineering
      • View Item
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      PENGARUH CAMPURAN CANGKANG SAWIT DAN PLASTIK PADA PIROLISIS BERKATALIS CaO–ZEOLIT ALAM TERHADAP SIFAT FISIK DAN KIMIA PYROLYTIC OIL

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      Date
      2018-08-11
      Author
      DWIJAYANTO, RAHMAT
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      Abstract
      Pyrolysis method is a chemical decomposition process of organic and inorganic materials using a reactor by heating without the presence of oxygen. The pyrolysis process produces liquid products (pyrolytic-oil), gas and char. Given that in Indonesia, the biggest waste is dominated by palm shells and plastic. Those waste have become a serious problem for the community, because the numbers are large and difficult to decompose in the environment. The wastes have a high volatile content, which has the potential to produce pyrolytic-oil. The results of pyrolytic-oil are expected to be used as an alternative solution to overcome the energy crisis. This study aims to determine the effect of the percentage of raw materials on the physical and chemical properties of pyrolytic-oil. This study using a fixed-bed reactor with 500°C heating from an electric heater. The raw material used is palm shell waste and plastic bag with a mixture of catalysts (CaO and natural zeolite). Variations in the comparison of palm shell with plastic are 100%:0%, 75%:25%, 50%:50%, 25%:75%, and 0%:100% respectively with the addition of catalysts (CaO and natural zeolite) by 75% in every variation. The results of pyrolytic-oil were tested to determine the value of density, pH, viscosity, heating value (HHV) and chemical compounds. Testing density obtained that the variation of plastic 75% and 100% (a) has a result of approaching the premium properties of 770 kg/m3. Variation of plastic 75% on pH level has neutral proximity is 7,65. The highest viscosity in variation of plastic 100% is 33,3 cP, is caused by wax contained in pyrolytic-oil that the viscosity increases. Then, the highest heating value (HHV) was obtained in variation of plastic 100% is 45.33 MJ/kg. According to the results of the identification of compounds known that the addition of plastic can contribute to increase the hydrocarbon content, which is dominated by alkane compounds and reduce the content of acid and phenolic.
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      http://repository.umy.ac.id/handle/123456789/22411
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